55010516501556 has 144 divisors (see below), whose sum is σ = 173604950937600. Its totient is φ = 14268791338560.

The previous prime is 55010516501539. The next prime is 55010516501573. The reversal of 55010516501556 is 65510561501055.

It is an interprime number because it is at equal distance from previous prime (55010516501539) and next prime (55010516501573).

It is a super-2 number, since 2×55010516501556² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11633356 + ... + 15663843.

Almost surely, 2^{55010516501556} is an apocalyptic number.

It is an amenable number.

55010516501556 is an abundant number, since it is smaller than the sum of its proper divisors (118594434436044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55010516501556 is a wasteful number, since it uses less digits than its factorization.

55010516501556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27297954 (or 27297949 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 45.

The spelling of 55010516501556 in words is "fifty-five trillion, ten billion, five hundred sixteen million, five hundred one thousand, five hundred fifty-six".